Police said it appears the shooting occurred during a robbery at Davis' third-floor apartment at 2 Benedict St. in the Terryville section of Plymouth, where several people were gathered, police said.

The suspects were each charged with felony murder, murder, first-degree assault, conspiracy to commit murder, conspiracy to commit robbery and criminal attempt to commit robbery. They are being held on $1.5 million bail and are scheduled to be arraigned Monday in Superior Court in Bristol. Police did not release their addresses.

The state police spokesman, Lt. J. Paul Vance, said the three charged were acquainted but he did not know ``to what degree.''

Police responded to the shooting at Davis' apartment around 2:45 a.m. Friday. Davis was pronounced dead at the scene. Hall, of Terryville, was taken to Waterbury Hospital, treated there and released.

At midday Friday, state police announced they might have a development in the case. A SWAT team and other officers surrounded an apartment building on Irving Street near Bristol's downtown, thinking a suspect was inside. But detectives freed a man after questioning him.